نتایج جستجو برای: eagles syndrome
تعداد نتایج: 622754 فیلتر نتایج به سال:
The Scottish Division of the Royal College of Psychiatrists conducted a survey of members and fellows in 2003 on recruitment and retention within psychiatry. Responses relating to retirement intentions of consultants have been published previously (Eagles et al, 2005). Respondents were asked to give views about improving recruitment, and by far the most common suggestion was that this could be ...
Abstract A previously published model of avian electrocution risk, the “2014 model,” compared power poles that electrocuted birds (electrocution poles; including 21 golden eagle Aquila chrysaetos electrocutions) with not known to have (comparison poles). The 2014 produces pole-specific risk index scores between 0 and 1. rank relative so electric utilities can maximize conservation benefits per ...
Estimates of species abundance are key importance in population and ecosystem level research but can be hard to obtain. Study designs using camera traps increasingly being used for large-scale monitoring that elusive and/or occur naturally at low densities. Golden eagle (Aquila chrysaetos) is one such species, we investigate whether existing programs baited estimate the golden eagles, as an alt...
P of the attraction of ecology and its related intellectual challenges is its dynamic complexity. Darwin’s (1) entangled bank metaphor captured the essence; it wasn’t just that everything was connected to everything else but rather that specific relationships mattered. Darwin found that mowed turf contained approximately twice as many species as unmowed turf; a logical chain of influence was ar...
مقدمه. سندرم زجرتنفسی نوزادان (infant respiratory distress syndrome) ، یک بیماری حاد ریوی است که معمولا نوزادان نارس به آن مبتلا می شوند. در این بیماری، ریه نابالغ و غیر عملکردی است. در واقع نقص در سورفاکتانت باعث ایجاد این بیماری می شود. سورفاکتانت باعث کاهش کشش سطحی آلوئول ها می شود و در نتیجه از کلاپس و بسته شدنشان جلوگیری می کند. پروتئین abca3 ترنسپورتر لیپیدهای سورفاکتانت، نقش بسیار مهمی د...
Stochastic variation of sex ratio has long been appreciated as a potential factor driving small populations to extinction, but it is not the only source of sex-ratio bias in small populations. We examined whether some consequences of sex allocation could affect extinction risk in small populations of size-dimorphic birds such as eagles. We report variations in sex ratio at fledging from a long-...
© Royal Swedish Academy of Sciences 2002 Ambio Vol. 31 No. 5, August 2002 http://www.ambio.kva.se INTRODUCTION In this paper, white-tailed sea eagle (Haliaeetus albicilla) and sea eagle are used synonymously. The white-tailed sea eagle population on the Swedish coast of the Baltic Sea has been under strong influence of environmental pollution for decades. Consistent breeding failures over sever...
The alarm calls of vervet monkeys (Chlorocebus pygerythrus) constitute the classic textbook example of semantic communication in nonhuman animals, as vervet monkeys give acoustically distinct calls to different predators and these calls elicit appropriate responses in conspecifics. They also give similar sounding calls in aggressive contexts, however. Despite the central role the vervet alarm c...
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